Giant resonant magnetoelectric effect in bi-layered Metglas/Pb(Zr,Ti)O3 composites

Abstract

In this paper, giant resonant magnetoelectric (ME) effect in an unsymmetrical bi-layered Metglas/Pb(Zr,Ti)O3 ME composites with multi-push pull configuration that can be significantly tuned was investigated experimentally and theoretically. The actual measured and predicted results present the similar resonant frequency shifting behaviors for such ME composites: The resonant frequency can be varied from 70 Hz to 220 Hz by tip mass loading, where the ME voltage coefficients were over 250 V/cm-Oe. Moreover, the giant frequency-tunable resonant effect allowed us to design a 60 Hz magnetic field energy harvester to be capable of harvesting energy generated by electronic instruments working on a 60 Hz ac power supply.

Status and Perspectives of Multiferroic Magnetoelectric Composite Materials and Applications

“…Gao et al [103] designed an asymmetrical bi-layered push-pull mode Metglas/Pb(Zr,Ti)O 3 laminate, and obtained a giant αME of more than 400 V/cm¨Oe with a tunable resonance frequency in the range of 60 Hz to 220 Hz by tip mass loading. The maximum harvested power output was about 16 µW/Oe with a 6 MΩ resistance load, with a corresponding power density of 200 µW/cm 3 at 60 Hz.…”

“…Gao et al [103] designed an asymmetrical bilayered push-pull mode Metglas/Pb(Zr,Ti)O3 laminate, and obtained a giant αME of more than 400 V/cm·Oe with a tunable resonance frequency in the range of 60 Hz to 220 Hz by tip mass loading. …”

“…Harvesting this weak and low-frequency magnetic noise (< 1 mT = 10 G) to develop a consistent electricity source remains a difficult challenge. Over the last decade, Ryu group [47,94,95] and other researchers [96][97][98][99][100][101][102][103][104][105] have investigated methods to obtain optimum electricity from the tiny magnetic fields in the surroundings, using magneto-mechano-electric (MME) mechanism. The operation mechanism can be described as follows: When the ME composite is placed in an AC magnetic field, the magnetostrictive layer in the composite responds to the mechanical vibration (magneto-mechano coupling), thereby straining the piezoelectric layer, which results in an output voltage across the electrical load through the direct piezoelectric effect (mechano-electric coupling).…”

“…Summary of reported power densities from the MME harvesters made with different composite systems. Data are from references [94,[96][97][98][99][100][101][102][103][104][105].…”

Additional magnetoelectric effect in electrode-arrayed magnetoelectric composite

“…[12][13][14][15][16] From the perspective of composite structure, layered, multi-faceted, disk-ring and other hetero-structures have been developed. [17][18][19][20][21] Arrayed structure can improve system performance and achieve multiple functions for multiple applications. It has been applied to energy harvester, 22 structural health monitoring device, 23 ultrasonic transducer, 24 bulk acoustic wave gravimetric chemical sensors 25 and other applications.…”